Cooling system for a gas turbine

Patent · Wed Jan 01 04:00:00 EST 2003

OSTI ID:874988

Wilson, Ian David ^[1]; Salamah, Samir Armando ^[2]; Bylina, Noel Jacob ^[2]

---

1. Mauldin, SC
2. Niskayuna, NY

A plurality of arcuate circumferentially spaced supply and return manifold segments are arranged on the rim of a rotor for respectively receiving and distributing cooling steam through exit ports for distribution to first and second-stage buckets and receiving spent cooling steam from the first and second-stage buckets through inlet ports for transmission to axially extending return passages. Each of the supply and return manifold segments has a retention system for precluding substantial axial, radial and circumferential displacement relative to the rotor. The segments also include guide vanes for minimizing pressure losses in the supply and return of the cooling steam. The segments lie substantially equal distances from the centerline of the rotor and crossover tubes extend through each of the segments for communicating steam between the axially adjacent buckets of the first and second stages, respectively.

• Research Organization: General Electric Company (Schenectady, NY)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6506021
• OSTI ID: 874988
• Country of Publication: United States
• Language: English

Related Subjects

/416/415/
adjacent
arcuate
arranged
axial
axially
axially extending
buckets
centerline
circumferential
circumferentially
communicating
cooling
crossover
displacement
distances
distributing
distribution
equal
exit
extend
extending
gas
gas turbine
guide
inlet
lie
losses
manifold
minimizing
passages
plurality
ports
precluding
pressure
radial
receiving
retention
return
rim
rotor
second-stage
segments
spaced
spent
stages
steam
substantial
substantially
supply
transmission
tubes
turbine
vanes